Filter
Top Products
98
Repairing the Pump
Simple Repairs
The quaternary pump is designed for easy repair. The most frequent repairs
such as plunger seal change and purge valve frit change can be done from the
front of the quaternary pump with the quaternary pump in place in the system
stack. These repairs are described in “Simple Repair Procedures” on
page 102.
WARNING When opening capillary or tube fittings solvents may leak out. Please
observe appropriate safety procedures (for example, goggles, safety
gloves and protective clothing) as described in the material handling
and safety data sheet supplied by the solvent vendor, especially when
toxic or hazardous solvents are used.
Exchanging Internal Parts
Some repairs may require exchange of defective internal parts. Exchange of
these parts requires removing the quaternary pump from the stack, removing
the covers, and disassembling the quaternary pump. The security lever at the
power input socket prevents that the pump cover is taken off when line
power is still connected.
WARNING To prevent personal injury, the power cable must be removed from the
quaternary pump before opening the pump cover. Do not connect the
power cable to the quaternary pump while the covers are removed.
CAUTION Electronic boards and components are sensitive to electrostatic discharge
(ESD). In order to prevent damage always use an ESD protection (for
example, the ESD wrist strap from the accessory kit) when handling
electronic boards and components.